Curic Mirror extension -- cannot mirror sloped object

If anyone has experience using Curic Mirror with sloped objects, I am trying to mirror a sloped roof plane (model attached) without success. The inferences are all over the place and I cannot find the right plane to mirror from.

Also, if you can share effective way to mirror this object using native Sketchup that would also help. CuricMirror_sloped_object.skp (77.9 KB)

You need to give it a reference face for the mirroring.

You could also copy and use Flip Along.

Mirror, flip, scale to -1

Two great solutions. Thanks!

Those look like great solutions. Thank you for providing the animation!

You’re welcome.

You might find it useful to set up keyboard shortcuts for the nine Flip Along commands.

Will do. Thanks.